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# Chapter 9 VOCAB

### Probability

TermDefinition
Complementary Events Two events in which either one or the other must happen, but cannot happen at the same time.
Compound Events A combination of two or more simple events.
Dependent Events If the outcome of one event affects the outcome of another event.
Experimental Probability Also known as relative frequency- based on what ACTUALLY happens in an experiment.
Fundamental Counting Principle You can use this to find the total number of possible outcomes by using multiplication.
Independent Events If the outcome of one event does not affect the outcome of another event.
Outcome A result of a probability experiment.
Probability the chance of something occurring.
Sample Space The set of all possible outcomes.
Simple Event one event or action
Simulation A test of a real-world scenario.
Theoretical Probabiliy Based on what should happen in an experiment.
Tree Diagram One way to create the list all the possible outcomes.
Unfair When the outcomes do not have the same chance of occurring.
Impossible A probability of 0
Certain A probability of 1
As likely as not A probability of 1/2
Likely A probability between 1/2 and 1
Unlikley A probability between 0 and 1/2
Created by: kgierman
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